Fishmeal and oil production
(produktion af fiskemel og fiskeolie)
|
Denmark
2000
|
Fishmeal
and oil are industrial products made from industrial fish (fish for reduction)
caught in the sea and from fish waste from fish industry. Fishmeal is used
as ingredient in animal feed and
fish oil is used as
ingredient in both animal feed and human food
products.
Process description
The
present data refer
to
fishmeal and oil production in one major factory in Esbjerg, TrippleNine
where the production processes are following:
1) The raw material
of industrial fish is boiled in its own juice by an indirect supply of
steam. 2) The cooked fish is separated into a dry fraction (press cake)
and a liquid fraction (press water) by pressing. 3) The fish oil is separated
from the press water by centrifugation. 4) The press cake is dried at
temperatures ranging from 70 to 100°C by means of indirect steam until
a moisture content of 5-10%. 5) The dried press cake is cooled and milled
into fishmeal and antioxidant is added. 6) The oil is packed in metal
drums and the meal is packed in bags before delivery. The
factory produces about 220.000 ton of fishmeal and 60.000 ton of fish
oil.
The factory is modern and it is committed
to energy saving and environmental protection through its official policy.
Data collection and treatment
All data
are derived from TrippleNine’s May and
June record in 2000 when
100% of fish-input was
sandeel.
Technical scope
All production
processes as well as heating and lightening are included. Packaging is not
included
Representativity
The factory produces about 220.000 ton fishmeal and 60.000 ton fish oil per
year and is the second largest producer in the world.
Validation
Good
agreement has been found between the present data and data from a similar
processes (confidential source).
Inputs and outputs
Inputs and outputs associated with
fishmeal and oil production
are shown in the table below
Data are provided per
kg
of fishmeal (5-10% moisture) at the fishmeal factory’s gate.
|
|
Materials/fuels |
Unit |
Quantity |
|
Inputs |
Sand eel |
kg |
4.66 |
|
|
Formaline (37 % formaldehyde) |
g |
10.8 |
|
|
Antioxidants |
g |
0.309 |
|
|
Sulphuric acid. H2SO4 |
g |
2.1 |
|
|
Sodiumhydroxide, NaOH |
g |
4.8 |
|
|
Nitric acid, HNO3 |
g |
0.52 |
|
|
Hydrochloric acid. HCl |
g |
0.38 |
|
|
Electricity |
kWh |
0.19 |
|
|
Heat |
MJ |
6.2 |
|
|
|
|
|
|
Outputs |
Products |
|
|
|
|
Fishmeal |
kg |
1 |
|
|
Fish oil |
kg |
0.21 |
|
|
Wastewater to municipal
waste water treatment plant |
|
|
|
|
COD |
g |
4.5 |
|
|
N-tot |
g |
1.1 |
|
|
P-tot |
mg |
31 |
|
|
Emission to sea |
|
|
|
|
COD |
g |
0.56 |
|
|
N-tot |
g |
0.54 |
|
|
P-tot |
mg |
5.2 |
| Location
in database: Maretial/Food
from industry/From feed industry/fish meal |
Administrative information
Data URL: http://www.lcafood.dk/processes/industry/fishmealproduction.html
Version no.: 1.00
Authors: Erik
Olesen, Højmarkslaboratoriet
and Per H. Nielsen 2.-0
LCA Consultants.
Data entry:
Data have been entered in this format by Per
H. Nielsen and Erik Olesen.
Data completed: July 2003.
|